string(346) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2022%E5%B9%B4%E5%AE%89%E5%85%A8%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%95%99%E6%9D%90%E5%92%8C2023%E5%B9%B4%E5%AE%89%E5%85%A8%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%95%99%E6%9D%90%E5%87%BA%E5%85%A5%E5%A4%A7%E5%90%97 => Received HTTP code 403 from proxy after CONNECT"
2022年安全工程师教材和2023年安全工程师教材出入大吗
